hybrid black-poplar

synonym: Populus euramericana, gelrica, marilandica, regenerata, robusta, serotina

organ parasitic mode stage note taxonomic group parasite
leaf oviposition scar Tenthredinidae Pristiphora conjugata
leaf gall larva Rhynchitidae Byctiscus populi
stem vagrant Aphididae Pterocomma tremulae
leaf gall spring generation Aphididae Pemphigus immunis
leaf vagrant Aphididae Chaitophorus populeti
leaf vagrant summer generation Tortricidae Gypsonoma dealbana
leaf bud borer spring generation Tortricidae Gypsonoma dealbana
stem borer Sesiidae Sesia apiformis
stem gall Tortricidae Gypsonoma aceriana
leaf vagrant Cicadellidae Viridicerus ustulatus
leaf vagrant Aphididae Chaitophorus populifolii
stem vagrant Aphididae Phloeomyzus passerinii
leaf down Erysiphales Erysiphe adunca
leaf down Erysiphales Phyllactinia populi
leaf gall Aphididae Pemphigus spyrothecae
leaf gall spring generation Aphididae Pemphigus bursarius
leaf gall spring generation Aphididae Pemphigus populinigrae
leaf gall spring generation Aphididae Thecabius affinis
leaf gall Psyllidae Camarotoscena speciosa
leaf gall Taphrinales Taphrina populina
leaf miner Agromyzidae Agromyza albitarsis
leaf miner Agromyzidae Aulagromyza populi
leaf miner Agromyzidae Aulagromyza populicola
leaf miner Agromyzidae Aulagromyza tremulae
leaf miner Chrysomelidae Zeugophora flavicollis
leaf miner Curculionidae Isochnus sequensi
leaf miner Gracillariidae Phyllocnistis extrematrix
leaf miner Gracillariidae Phyllocnistis unipunctella
leaf miner Gracillariidae Phyllonorycter connexella
leaf miner Gracillariidae Phyllonorycter populifoliella
leaf miner Lyonetiidae Leucoptera sinuella
leaf miner Nepticulidae Ectoedemia hannoverella
leaf miner Nepticulidae Stigmella trimaculella
leaf miner Tenthredinidae Heterarthrus ochropoda
leaf miner Tortricidae Gypsonoma oppressana
leaf oviposition scar Tenthredinidae Cladius grandis
leaf pustule uredinia telia Pucciniales Melampsora allii-populina
leaf pustule uredinia telia Pucciniales Melampsora laricis-populina
leaf vagrant Eriophyidae Aculus mogeri
stem gall Tortricidae Gypsonoma aceriana
stem vagrant Aphididae Pterocomma populeum
leaf miner Gracillariidae Phyllonorycter comparella
leaf vagrant Aphididae Chaitophorus leucomelas
leaf vagrant Aphididae Chaitophorus nassonowi

Organ

the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.

PARASITIC MODE

borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.

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IMPORTANT

The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.

 

mod 6.xii.2019